.hide-scrollbar{
  scrollbar-width: none;
  /* firefox */
  -ms-overflow-style: none;

  /* IE 10+ */
  &::-webkit-scrollbar {
    display: none;
    /* Chrome Safari */
  }
}
.no-select {
  -webkit-user-select: none; /* Chrome, Safari, Opera */
  -moz-user-select: none;    /* Firefox */
  -ms-user-select: none;     /* Internet Explorer/Edge */
  user-select: none;        /* 标准语法 */
}